Phillip Flamm's Computer Store in Texas sells a printer for$150. Demand is constant during the year, and annual demand is forecasted to be 840 units. Holding cost is $35 per unit per year, whereas the cost of ordering is $60 per order. Currently, the company is ordering 12 times per year (70 units each time). There are 250 working days per year, and the lead time is 5 days. a) Given the current policy of ordering 70 units at a time, the total of the annual ordering cost and the annual holding cost is $ ?? (round your response to the nearest whole number). b) If the company used the absolute best inventory policy, the total of ordering and holding cost is $ ?? (round your response to the nearest whole number). c) The reorder point is ?? units (round your response to the nearest whole number).